Tens Gold Worksheets

The magic number of ten to make calculations easy Manipulation of ten's place for place value applications and rounding For children in grades 1-3 Third-page cardstock taskcards and paper answer keys 30 separate free-response exercises with 9 or 12 questions each Concepts Children learn that ten is a "magic number" and can make operations easy. Ten as an addend and subtrahend, nine as an addend, increasing or decreasing in ten's place, making tens to add, number patterns, multiples of ten, rounding. Format Third-page cardstock taskcards and paper answer keys (Lamination recommended for heavy use; requires two cuts per page; may store uncut answer keys in binder or file.)  Recommended storage isnine-inch by three-inch plastic organizer.